Danylo Piliaiev
44bdac9849
Graphics Flight Recorder is: "The Graphics Flight Recorder (GFR) is a Vulkan layer to help trackdown and identify the cause of GPU hangs and crashes. It works by instrumenting command buffers with completion tags." This is a nice little tool which could help quickly identify the call which hanged. Or if command buffer is executed for too long. The tiling nature of our GPU shouldn't be a big issue aside from lower performance. For non-segfault case, if: - Hang happens at the same place in cmdbuf and draw/dispatch is not finished at that point - it is likely that there is an infinite loop in some of the shaders in this draw. - Hang happens always in different place - likely there is nothing wrong and command buffer just takes too long to execute and you should try increasing hangcheck_period_ms. If it doesn't help it is likely a synchronization issue. Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13553>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.